Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 677 and 685 the smallest integer that is 463745 that is divisible by both numbers.
Least Common Multiple (LCM) of 677 and 685 is 463745.
LCM(677,685) = 463745
Least common multiple or lowest common denominator (LCD) can be calculated in three ways;
Least common multiple can be found by multiplying the highest exponent prime factors of 677 and 685. First we will calculate the prime factors of 677 and 685.
Prime Factorization of 677
677 | 677 |
1 |
Prime factors of 677 are 677. Prime factorization of 677 in exponential form is:
677 = 6771
Prime Factorization of 685
5 | 685 |
137 | 137 |
1 |
Prime factors of 685 are 5,137. Prime factorization of 685 in exponential form is:
685 = 51×1371
Now multiplying the highest exponent prime factors to calculate the LCM of 677 and 685.
LCM(677,685) = 51×1371×6771
LCM(677,685) = 463745
Factors of 677
List of positive integer factors of 677 that divides 677 without a remainder.
1, 677
Factors of 685
List of positive integer factors of 685 that divides 685 without a remainder.
1, 5, 137, 685
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 677 and 685, than apply into the LCM equation.
GCF(677,685) = 1
LCM(677,685) = ( 677 × 685) / 1
LCM(677,685) = 463745 / 1
LCM(677,685) = 463745
(i) The LCM of 685 and 677 is associative
LCM of 677 and 685 = LCM of 685 and 677
1. What is the LCM of 677 and 685?
Answer: LCM of 677 and 685 is 463745.
2. What are the Factors of 677?
Answer: Factors of 677 are 1, 677. There are 2 integers that are factors of 677. The greatest factor of 677 is 677.
3. What are the Factors of 685?
Answer: Factors of 685 are 1, 5, 137, 685. There are 4 integers that are factors of 685. The greatest factor of 685 is 685.
4. How to Find the LCM of 677 and 685?
Answer:
Least Common Multiple of 677 and 685 = 463745
Step 1: Find the prime factorization of 677
677 = 677
Step 2: Find the prime factorization of 685
685 = 5 x 137
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 463745 = 5 x 137 x 677
Step 4: Therefore, the least common multiple of 677 and 685 is 463745.